NuScale's 38% Plunge Hides a 6 GW Nuclear Bet — Can SMRs Power the AI Era?

For clean energy stakeholders, the nuclear SMR sector is a high-stakes experiment. NuScale's regulatory first-mover advantage and the TVA's 6 GW commitment could unlock a new era of scalable, zero-carbon baseload power—exactly what the grid needs to support surging AI loads without undermining climate goals. But until reactors are actually built, the technology remains a paper promise, leaving the climate community weighing the risks of delay against the imperative to decarbonize heavy industry and data centers.

NuScale Power, the frontrunner in the small modular reactor (SMR) race, finds itself at a critical inflection point. Its stock has plummeted 38% in 2026, erasing a large portion of the gains from a previous hype cycle that saw shares surge 500% before crashing back to earth. Yet beneath the market turmoil lies a potentially transformative opportunity: the insatiable electricity demand from artificial intelligence data centers is colliding with a need for reliable, carbon-free baseload power, and NuScale's SMR technology—the only design approved by the Nuclear Regulatory Commission (NRC)—is uniquely positioned to fill that gap.

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Its stock has plummeted 38% in 2026, erasing a large portion of the gains from a previous hype cycle that saw shares surge 500% before crashing back to earth.

The roller coaster in NuScale's valuation reflects the broader nuclear energy sector's boom-and-bust pattern over the past year. As AI's power appetite became headline news, investors rushed into any company promising a solution, pushing nuclear-related stocks to dizzying heights. NuScale, with its regulatory head start, became a symbol of that enthusiasm. However, the subsequent decline reveals a sober reality: approval is not the same as deployment. Despite having its reactor design greenlit in 2020, NuScale has yet to construct a single reactor, and the path to commercialization remains long, costly, and riddled with execution risks.

The stakes are now immense. In a landmark move, the Tennessee Valley Authority (TVA) has committed to purchasing 6 gigawatts of power from plants using NuScale's technology, representing a potential pipeline of dozens of reactors. This partnership, forged after NuScale teamed up with ENTRA1 Energy to commercialize its designs, signals genuine utility-scale demand. If NuScale can deliver its first operational reactor within the next few years, the floodgates could open. Analysts project the stock could deliver a 400% return from current levels, reflecting a market capitalization that would align with the immense addressable market for clean baseload energy.

However, the risks are equally stark. SMRs have never been deployed at commercial scale, and the nuclear industry is notorious for cost overruns and delays. Competitors like TerraPower and X-energy are also advancing, and even with regulatory approval, NuScale must secure financing, navigate supply chains, and manage construction—all while proving the economic viability of its standardized reactor modules. A single major setback could shatter confidence, leaving the company unable to raise capital and facing a bankruptcy scenario that would wipe out equity holders.